Item | Unit | Standard | Test method | |
thickness | mic | 12 | ASTM D-374 | |
Tolerance | % | ±5 | ||
Tensile strength | MD | Mpa | ≥170 | ASTM D-882 |
TD | ≥170 | |||
Heat shrinkage (150℃,30min) | MD | % | ≤3.0 | ASTM D-1204 |
TD | ≤3.0 | |||
Elogation at break | MD | % | ≤200 | ASTM D-882 |
TD | ≤200 | |||
Surface tension | Metal coating | Mn/m | ≥38 | ASTM D-2578 |
Film surface | ≥38 | |||
Friction of coefficient | ---- | ≤0.80 | ASTM D-1894 | |
≤0.80 | ||||
Uniformity of aluminum layer | % | ±10 | X-RITE 361T | |
Firm of aluminum layer | % | ≥98 | 3M Tape | |
Firm of coating layer | % | ≥98 | 3M Tape |